Earth's Resources Used Up at Quickest Rate Ever in 2016 (france24.com)

An anonymous reader writes: In just over seven months, humanity has used up a full year's allotment of natural resources such as water, food and clean air -- the quickest rate yet, according to a new report. The point of "overshoot" will officially be reached on Monday, said environmental group Global Footprint Network -- five days earlier than last year. "We continue to grow our ecological debt," said Pascal Canfin of green group WWF, reacting to the annual update. "From Monday August 8, we will be living on credit because in eight months we would have consumed the natural capital that our planet can renew in a year."

Comments

From TFA

[almitydave]

To calculate the date for Earth Overshoot Day, the group crunches UN data on thousands of economic sectors such as fisheries, forestry, transport and energy production.

Earth-warming greenhouse gas emissions, it said, are now the fastest-growing contributor to ecological overshoot, making up 60 percent of humanity's demands on nature -- what is called the ecological "footprint".

I've never even heard of this metric. Is this based on real science or climate activism?

Re:From TFA

[Jason Levine]

First off, volcanos are dwarfed by the amount of carbon dioxide and other greenhouse gasses that people pump into the atmosphere annually. Secondly, what we pump into the atmosphere came from an area deep underground where it had been sequestered for millions of years. So for millions of years, the trees/plants didn't need to take care of this carbon dioxide and it wasn't part of the natural carbon cycle. Now, though, it's suddenly being tossed into the atmosphere and some people act surprised that the existing plant life can't just magically handle all of the new stuff too.

Will climate change end life on Earth? No, it won't. Might it make life on Earth really horrible for humans? Yes. Our cities on the coastlines (where we've historically loved building cities) will get flooded. Traditional crops won't grow in their usual farm areas and the new areas that have the right temperature might not have suitable farmland/soil conditions. (If you want to grow corn in the new "corn belt" area, it won't be good if that happens to lie on a mountainous terrain.) In short, humans can pay to fix climate change now or we really pay for it later.

Re:Activism

[Ichijo]

in terms of breathable air, pollutants in it are a local problem, not global.

False.

Re:The Earth is used up

[scatbomb]

It is true that CO2 stimulates plant growth, if you isolate other factors. The problem is that we are deforesting our planet, so the net change in plant biomass is negative. Furthermore, the excess CO2 in the atmosphere is about 37% of the existing 3E12 tons of CO2 in the atmosphere, or 1.13E12 tons of excess CO2 from human activities. A single km^2 of rainforest contains about 356 tons of biomass (wikipedia), so assuming it's all carbon (it's not) we'd need another 3.2E9 km^2 of rainforest to consume all of the excess CO2 in the air. The earth's surface area (including oceans) is only 5E8 km^2. So we'd need 6.2 earth surface areas of Amazon rainforest to sequester all of the extra CO2 in the air. You see, the carbon stores were saved up from fossilization over millions and millions of years and we've attempted to release all of them into the atmosphere in about 100 years. The earth cannot "bounce back" from such a rapid change, it will take millions and millions of years for geological processes to bring carbon back into the Earth's crust. Hope that you see now this is a major problem that won't be solved by sitting back and watching. My sources are: https://en.wikipedia.org/wiki/... and https://micpohling.wordpress.c... feel free to check my math.